Why have people decided to Occupy Wall Street, and other financial areas in major cities the world over?

The people who have decided to Occupy Wall Street and other financial areas in major cities of the world are trying to express their anger of the unequal financial system. The 99% are middle classed people who are getting their rights or money taken.People are showing their fury of losing their jobs, some people not being able to attend colleges, insurances, etc...

Who might oppose those who are occupying Wall Street or demonstrating? Why are they opposing them?

High classed people will oppose those who are occupying Wall Street or demonstrating. People who have power and have high authorities. They don't wont other people to get influenced and join and rebel all together. Those people are trying to prevent middle classed people from knowing what they are missing and realizing what kind of unfair treatments they are getting treated. In these ways it's kind of similar to the Churches from the Renaissance trying to stop people from realizing the truth.